Abstract: A constant density heat exchanger and method of operating are provided. The constant density heat exchanger includes a housing extending between a first end and a second end and defining a chamber having an inlet and an outlet. A first plate is positioned at the first end of the housing and rotatable about an axis of rotation such that the first plate selectively allows a working fluid to flow into the inlet of the chamber. A second plate is positioned at the second end of the housing and rotatable about the axis of rotation such that the second plate selectively allows the working fluid to flow out of the outlet of the chamber. The first plate and the second plate are rotatable about the axis of rotation so as to hold a volume of the working fluid at constant density as a heat source imparts thermal energy thereto.

Abstract: An introduced autonomous aerial vehicle can include multiple cameras for capturing images of a surrounding physical environment that are utilized for motion planning by an autonomous navigation system. In some embodiments, the cameras can be integrated into one or more rotor assemblies that house powered rotors to free up space within the body of the aerial vehicle. In an example embodiment, an aerial vehicle includes multiple upward-facing cameras and multiple downward-facing cameras with overlapping fields of view to enable stereoscopic computer vision in a plurality of directions around the aerial vehicle. Similar camera arrangements can also be implemented in fixed-wing aerial vehicles.

Abstract: An additive manufacturing apparatus can include a stage configured to hold one or more cured layers of resin that form a component. A radiant energy device can be operable to generate and project radiant energy in a patterned image. An actuator can be configured to change a relative position of the stage relative to the radiant energy device. A reclamation system can be downstream of the stage and can be configured to remove at least a portion of the resin from a resin support. The reclamation system can include a first collection structure configured to accept a resin support therethrough along a resin support movement direction. A first scraper is positioned within the first collection structure. The first scraper has an elongation axis that is offset from the resin support movement direction by an offset angle that is less than 90 degrees.

Abstract: A reclamation system for an additive manufacturing apparatus can include a collection structure configured to remove at least a portion of the resin from a foil. A containment vessel can be configured to retain the resin removed from the foil. A drain can direct the resin from the containment vessel to a reservoir.

Abstract: Bacillus strain compositions and methods for reducing growth of one or more mastitis-causing organisms and/or reducing a symptom, sign, or occurrence of mastitis in animals are provided. The Bacillus strain composition can comprise a bacterial cell, a spore, a forespore, and/or a combination of cells, spores, and/or forespores of Bacillus subtilis 839, Bacillus subtilis 4976, and/or an active variant thereof. Compositions and methods provided herein can be applied to beddings of animals, such as dairy cows, and can reduce symptoms, signs, and/or occurrences of mastitis (e.g., environmental mastitis) in the animals and/or reduce somatic cell count in the milk produced by the animals. Beddings for animals comprising the Bacillus strain compositions provided herein in an effective amount to reduce growth of one or more mastitis-causing organisms are also provided.

Abstract: An additive manufacturing apparatus can include a stage configured to hold a component formed by one or more layers of resin. A support plate can be positioned above the stage. A radiant energy device can be positioned above the stage. The radiant energy device can be operable to generate and project energy in a predetermined pattern. A feed module can be configured to operably couple with a first end portion of a resin support and can be positioned upstream of the stage. A take-up module can be configured to operably couple with a second end portion of the resin support and can be positioned downstream of the stage.

Abstract: A computer-implemented method for matching material names from one or more material sources with safety data sheet material names from one or more safety data sheets. The method includes: extracting the material names from the one or more material sources; preprocessing the material names and removing extraneous data from one or more of the material names; selecting one of the material names; comparing the selected material name with the safety data sheet material names; identifying the safety data sheet material names that match the material name; and transmitting an output to a user device to display the material name and the matching safety data sheet material names.

Abstract: A system includes an endoscope connector and an endoscope adapter. The endoscope connector includes a first portion. The first portion includes a first magnetic coupling element and a first planar portion that is perpendicular to an axial direction of the endoscope connector. The endoscope adapter includes a second planar portion. The second planar portion includes a second magnetic coupling element and a substantially planar surface that is perpendicular to an axial direction of the endoscope adapter. The endoscope connector is non-mechanically attachable to the endoscope adapter using the first magnetic coupling element and the second magnetic coupling element. The first planar portion is alignable with the second planar portion such that: electroconductive contacts of the endoscope connector are axially aligned with electroconductive pins of the endoscope adapter and a port of the endoscope connector is axially aligned with a corresponding insertion port of the endoscope adapter.

Abstract: A twine disk for a mechanical knotter of a hay bailer has four vee shaped V-notches each formed with a hook portion and two substantially straight edge portions to enable tying twine knots with either two strands or with four stands using the same knotter.

Abstract: A data storage library is described that protects against a malware attack by providing a scheduled write window of time where archive data can be written to tape cartridges in the tape library on behalf of a client. At times outside of the write window, the tape library is disabled from writing any archive data to any of the tape cartridges in the tape library. Accordingly, the tape library is protected from a malicious entity attempting to download malware to tape cartridges in the tape library outside of the designated write windows. The tape library is configured to provide or otherwise read archived data from a tape cartridge both in the write window and outside of the write window.

Abstract: An organomimetic device includes a microfluidic device that can be used to culture cells in its microfluidic channels. The organomimetic device can be part of dynamic system that can apply mechanical forces to the cells by modulating the microfluidic device and the flow of fluid through the microfluidic channels. The membrane in the organomimetic device can be modulated mechanically via pneumatic means and/or mechanical means. The organomimetic device can be manufactured by the fabrication of individual components separately, for example, as individual layers that can be subsequently laminated together.

Abstract: A disclosed information handling system is coupled to a power adapter that is coupled to an AC line power source. The system includes an embedded controller storing instructions executable to determine that a trigger condition for limiting electrical power drawn by the system from the power adapter is met and, in response to the determination and in accordance with a low power operating mode, to limit electrical power drawn from the power adapter by the system to an amount less than or equal to the lesser of a power rating of the power adapter and a capacity of the AC line power source to supply electrical power. Limiting the electrical power drawn from the power adapter may include limiting the electrical power consumed by operation of the system or limiting a rate at which an internal battery of the system is charged by electrical power supplied by the power adapter.

Abstract: An additive manufacturing apparatus includes a stage configured to hold a component. A radiant energy device is operable to generate and project radiant energy in a patterned image. An actuator is configured to change a relative position of the stage relative to the radiant energy device. A resin management system includes a material deposition assembly upstream configured to deposit a resin on a resin support. The material deposition assembly includes a reservoir configured to retain a first volume of the resin and define a thickness of the resin on the resin support as the resin support is translated in an X-axis direction. The material deposition assembly further includes a vessel positioned above the reservoir in a Z-axis direction and configured to store a second volume of the resin. In addition, the material deposition assembly includes a conduit configured to direct the resin from the vessel to the reservoir.

Abstract: An additive manufacturing apparatus includes a stage configured to hold a component. A radiant energy device is operable to generate and project radiant energy in a patterned image. An actuator is configured to change a relative position of the stage relative to the radiant energy device. A resin management system includes a material deposition assembly upstream configured to deposit a resin on a resin support. The material deposition assembly includes a reservoir configured to retain a first volume of the resin and define a thickness of the resin on the resin support as the resin support is translated in an X-axis direction. The material deposition assembly further includes a vessel positioned above the reservoir in a Z-axis direction and configured to store a second volume of the resin. In addition, the material deposition assembly includes a conduit configured to direct the resin from the vessel to the reservoir.

Abstract: An additive manufacturing apparatus includes a stage configured to hold a component. A radiant energy device is operable to generate and project radiant energy in a patterned image. An actuator is configured to change a relative position of the stage relative to the radiant energy device. A resin management system includes a material deposition assembly upstream configured to deposit a resin on a resin support. The material deposition assembly includes a reservoir configured to retain a first volume of the resin and define a thickness of the resin on the resin support as the resin support is translated in an X-axis direction. The material deposition assembly further includes a vessel positioned above the reservoir in a Z-axis direction and configured to store a second volume of the resin. In addition, the material deposition assembly includes a conduit configured to direct the resin from the vessel to the reservoir.

Abstract: A reclamation system for an additive manufacturing apparatus can include a collection structure configured to remove at least a portion of the resin from a foil. A containment vessel can be configured to retain the resin removed from the foil. A drain can direct the resin from the containment vessel to a reservoir.

Abstract: An additive manufacturing apparatus can include a stage configured to hold one or more cured layers of resin that form a component. A radiant energy device can be operable to generate and project radiant energy in a patterned image. An actuator can be configured to change a relative position of the stage relative to the radiant energy device. A reclamation system can be downstream of the stage and can be configured to remove at least a portion of the resin from a resin support. The reclamation system can include a first collection structure configured to accept a resin support therethrough along a resin support movement direction. A first scraper is positioned within the first collection structure. The first scraper has an elongation axis that is offset from the resin support movement direction by an offset angle that is less than 90 degrees.

Abstract: An additive manufacturing apparatus includes a support plate defining a window and a resin support configured to support an uncured layer of resin. A stage is configured to hold one or more cured layers of the resin to form a component positioned opposite a support plate. A radiant energy device is positioned on an opposite side of the resin support from the stage and is operable to generate and project radiant energy in a patterned image through the window. The stage is configured to move simultaneously with the resin support from a first position to a second position in an X-axis direction.

Abstract: A bodily fluid collection system for collecting a bodily fluid from a patient, and a bodily fluid transfer system for transferring collected bodily fluid to a second collection device. A collection adapter has a connection port configured to securely connect with a hub of a syringe, and a collection interface opposite the connection port creates a fluid conduit to the barrel via the connection port and an inlet of the hub. A proximal adapter is connected to a proximal end of the fluid channel from the patient, and configured to removably interact with the collection interface of the collection adapter to connect the proximal end of the fluid channel to the barrel via the fluid conduit and inlet to the barrel to allow conveyance into the barrel of the at least some of the sampling portion of the sample of bodily fluid. The proximal adapter can be removed to allow access to any bodily fluid collected by the syringe.

Abstract: Use of porous metal oxide microspheres as light stabilizers for shaped artificial polymer articles, wherein the porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres.